/*
    pg_hello_world.c
        Wen Yi
*/
#include "postgres.h"
#include "funcapi.h"
#include "fmgr.h"
#include <stdio.h>
#include <string.h>

PG_MODULE_MAGIC;

PG_FUNCTION_INFO_V1(pg_hello_world);

Datum pg_hello_world(PG_FUNCTION_ARGS)
{
    PG_RETURN_CSTRING("Hello world!");
}